Dr. Nathan R. Cox, MD
- Medicare services, 2024
- 1,308
- Medicare patients, 2024
- 246
- Part D claims, 2024
- 53
- MIPS score, 2024
- 88
- Hospital affiliations
- 2
- Practice address
- 757 Westwood Plaza, Los Angeles, CA 90095
- Practice phone
- Call (310) 825-6301
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Cox's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Nathan R. Cox is a hospitalist in Los Angeles, California
Dr. Cox practices at Ronald Reagan UCLA Medical Center in Los Angeles, California, part of University of California Health.
Dr. Cox's NPI, 1912173378, was assigned on May 6, 2008. Dr. Cox graduated from WashU Medicine in 2008. Dr. Cox holds California license A116263.
- NPI
- 1912173378NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4486830650
- NPI enumeration date
- May 6, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (310) 825-6301
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nathan R. Cox practices at Ronald Reagan UCLA Medical Center in Los Angeles, California
Dr. Cox's primary practice is Ronald Reagan UCLA Medical Center, at 757 Westwood Plaza, Los Angeles, CA 90095 in Los Angeles County. The practice phone is (310) 825-6301.
- Ronald Reagan UCLA Medical Center757 Westwood Plaza, Los Angeles, CA 90095 · Los Angeles CountyPhone(310) 825-6301
Source: Dmand AI Affiliation Data
Dr. Nathan R. Cox is affiliated with 2 sites of care and 1 medical group
Dr. Cox's primary practice is Ronald Reagan UCLA Medical Center in Los Angeles, California, part of University of California Health. Dr. Cox is also affiliated with UCLA Santa Monica Medical Center. The medical group on file is UCLA Medical Group.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Nathan R. Cox's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Cox practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ronald Reagan UCLA Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across University of California Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Nathan R. Cox is one of 3,186 hospitalists in California
Hospitalist is Dr. Cox's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Cox is board certified in internal medicine by the American Board of Internal Medicine. Dr. Cox is licensed in California.
Specialties and state licenses
- Hospitalist, CaliforniaPrimary
Clinical focus
Dmand AI lists acute stomach ulcer, circulatory problems in extremities, congestive heart failure, lung disease: COPD, asthma or bronchitis, pancreatitis, pneumonia and respiratory infection, sepsis and urinary tract infection among the conditions Dr. Cox treats.
Hospitalists near Dr. Cox
Counts of hospitalists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Nathan R. Cox billed Medicare for 1,308 services in 2024
CMS data shows 1,308 Medicare services from Dr. Cox across 5 procedure codes in 2024, for 246 Medicare patients. Medicare paid $100,809 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Cox's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,5242024: 1,27017%
- Other services
- 2023: 582024: 3834%
Dr. Cox compared with the California median for hospitalists, 2024
- Dr. Cox
- California median
- Medicare services
- 1,308vs 4303.0 times
- Medicare patients
- 246vs 20122% above
- Part D claims
- 267vs 693.9 times
Medians across 2,991 hospitalists in California with Dmand AI profiles that report each measure.
Dr. Cox's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Cox?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Cox and other hospitalists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Nathan R. Cox treated 246 Medicare patients in 2024, average age 78
CMS counts 246 Medicare patients who saw Dr. Cox in 2024. The largest group is 75 to 84, with 91 patients. 75% of them have arthritis, and 75% have high blood pressure. 35% are also on Medicaid. Their average risk score is 3.11, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Cox's median patient age at 63, with 47% women.
Dr. Cox's Medicare patients by age, 2024
Dr. Cox's Medicare patients by sex, 2024
- Women12049%
- Men12651%
Chronic conditions among Dr. Cox's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease55%
- Chronic kidney disease52%
- Mood disorders52%
- Heart failure51%
- Diabetes48%
Share of Medicare patients with each condition. A patient can have several.
Dr. Cox's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women47%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Nathan R. Cox wrote 53 Medicare Part D claims in 2024
In 2024, Dr. Cox wrote 53 Medicare Part D claims for 25 patients. 91% of them were for generic drugs. They cover 15 drugs, with $12,225 in total drug cost.
Dr. Cox's Part D claims by kind of drug, 2024
- Generic48 claims91%
- Brand-name and other5 claims9%
Dr. Cox's most prescribed drugs by claims, 2016
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Cox's Part D claims, 2024
- Antibiotics26%14 of 53 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Nathan R. Cox scored 88 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 88 out of 100 for Dr. Cox for performance year 2024, reported as part of a group. Dr. Cox accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Cox's MIPS scores, performance year 2024
- 88of 100Final score
- 79.4of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 74of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Nathan R. Cox received $215 in industry payments from 2018 to 2024
CMS Open Payments shows 3 general payments to Dr. Cox from 2 drug and device companies from 2018 to 2024. Food and beverage make up the largest share, 58% of the total. Janssen Pharmaceuticals, Inc paid the most, $197.
General payments to Dr. Cox by program year, 2018 to 2024
General payments to Dr. Cox by kind, 2018 to 2024
- Food and beverage$12558%
- Education$9042%
Companies that paid Dr. Cox the most, 2018 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Nathan R. Cox graduated from WashU Medicine
Dr. Cox graduated from WashU Medicine in 2008.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Nathan R. Cox accepts plans from 7 insurance carriers
Dr. Cox is in network with 7 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- CMS Medicare
Plan types Dr. Cox accepts, by number of carriers
- Medicare7
- PPO6
- HMO3
- POS3
- EPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Nathan R. Cox's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Nathan R. Cox
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Nathan R. Cox's NPI number?
Dr. Nathan R. Cox's NPI number is 1912173378. It was assigned on May 6, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Nathan R. Cox?
Dr. Nathan R. Cox is a hospitalist in Los Angeles, California. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Dr. Nathan R. Cox practice?
Dr. Cox practices at 757 Westwood Plaza, Los Angeles, CA 90095. Dr. Cox's primary practice is Ronald Reagan UCLA Medical Center in Los Angeles, California, part of University of California Health.
What is Dr. Nathan R. Cox's office phone number?
The practice phone on file for Dr. Cox is (310) 825-6301.
What is Dr. Nathan R. Cox's medical license number?
Dr. Cox holds California license A116263.
Which hospitals is Dr. Nathan R. Cox affiliated with?
Dr. Cox practices at Ronald Reagan UCLA Medical Center in Los Angeles, California. Dr. Cox is also affiliated with UCLA Santa Monica Medical Center.
What medical group is Dr. Nathan R. Cox part of?
Dr. Cox is linked to UCLA Medical Group.
Does Dr. Nathan R. Cox accept Medicare?
Yes. CMS data shows Dr. Cox billed Medicare for 1,308 services in 2024, and Dr. Cox accepts Medicare assignment.
What is Dr. Nathan R. Cox's MIPS score?
Dr. Cox's MIPS final score for performance year 2024 is 88 out of 100, reported as part of a group.
How many Medicare patients does Dr. Nathan R. Cox see?
CMS counts 246 Medicare patients who saw Dr. Cox in 2024, with an average age of 78.
Show 7 more questionsShow fewer questions
Is Dr. Nathan R. Cox board certified?
Yes. Dr. Cox is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Nathan R. Cox bill to Medicare?
In 2024, Dr. Cox's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99233) and hospital inpatient care (99223).
Where did Dr. Nathan R. Cox go to medical school?
Dr. Cox graduated from WashU Medicine in 2008.
What drugs does Dr. Nathan R. Cox prescribe most?
In 2016 Medicare Part D data, Dr. Cox's most prescribed drugs by claims were Metoprolol Tartrate, Memantine HCl and Pantoprazole Sodium.
Has Dr. Nathan R. Cox received payments from drug or device companies?
CMS Open Payments shows $215 in general payments to Dr. Cox from 2 companies from 2018 to 2024. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Nathan R. Cox been practicing?
Dr. Cox graduated from medical school in 2008, 18 years ago.
What insurance does Dr. Nathan R. Cox accept?
Dr. Cox is in network with 7 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
Selling to hospitalist practices?
See hospitalists in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card